Oscilloscope yog dab tsi?
Lub oscilloscope yog ib hom kev ntsuas hluav taws xob uas tuaj yeem ua tiav ntau yam khoom ntsuas. Tom qab ntawd nrog dab tsi cov yam ntxwv ntawm cov khoom ua kom lubgeneral oscilloscopeua kom tiav tag nrho cov txheej txheem ntsuas? Nqe lus hauv qab no piav qhia txog cov khoom ntawm lubgeneral oscilloscope.
Cov khoom siv hluav taws xob muaj xws li oscillograph raj thiab nws cov tswj Circuit Court. Oscillograph tube yog ib hom tshwj xeeb ntawm cov raj thiab kuj yog ib feem tseem ceeb ntawm lub rajoscilloscope. Lub oscillograph raj muaj peb ntu: phom hluav taws xob, deflection system thiab phosphor screen.
Electronic phom
Cov phom hluav taws xob yog siv los tsim thiab tsim kom muaj kev kub ceev, pawg ntawm cov hluav taws xob ntws mus rau kev foob pob thiab teeb lub phosphor screen. Nws feem ntau muaj filament F, cathode K, rooj vag G, thawj anode A1, thiab thib ob anode A2. Ntxiv nrog rau cov filament, cov seem ntawm cov qauv electrode yog hlau thooj voos kheej kheej, thiab lawv cov axis yog khaws cia ntawm tib axis.
Tom qab lub cathode yog rhuab, electrons tuaj yeem tawm hauv qhov kev taw qhia axial; cov tswj electrode yog qhov tsis zoo muaj peev xwm txheeb ze rau cathode, hloov lub peev xwm tuaj yeem hloov cov xov tooj ntawm electrons los ntawm kev tswj ntawm lub qhov me me, uas yog, tswj qhov ci ntawm qhov chaw ntawm qhov screen.
Txhawm rau txhim kho qhov ci ci ntawm qhov screen ntawm qhov screen tsis txo qhov rhiab heev ntawm electron beam deflection. Nyob rau hauv niaj hnub oscilloscope, ib tug post-acceleration electrode A3 kuj ntxiv ntawm deflection system thiab phosphor screen.
Deflection system
Oscillograph tube deflection system feem ntau yog electrostatic deflection hom, uas muaj ob khub ntawm ntsug parallel hlau phaj muaj pes tsawg leeg, feem, hu ua kab rov tav deflection phaj thiab ntsug deflection phaj.
Feem ntau, lawv tswj cov kab hluav taws xob hluav taws xob hauv kab rov tav thiab ntsug. Thaum cov electrons txav ntawm daim hlau deflection, yog tias tsis muaj qhov hluav taws xob siv rau lub phaj deflection, tsis muaj hluav taws xob nruab nrab ntawm daim hlau deflection, thiab cov hluav taws xob nkag mus rau hauv deflection quab yuam los ntawm qhov thib ob anode yuav txav mus rau qhov chaw ntawm lub vijtsam. .
Yog tias muaj qhov hluav taws xob ntawm lub phaj deflection, muaj qhov hluav taws xob hauv nruab nrab ntawm daim hlau deflection, thiab cov hluav taws xob nkag mus rau hauv deflection yoke raug coj mus rau qhov chaw xaiv ntawm lub vijtsam los ntawm deflection ntawm hluav taws xob teb.
Yog tias ob daim hlau deflection yog sib npaug rau ib leeg thiab lawv qhov sib txawv muaj peev xwm sib npaug li xoom, cov kab hluav taws xob hluav taws xob muaj qhov nrawm υ los ntawm qhov chaw deflection phaj yuav txav mus rau qhov qub kev taw qhia (hauv axial kev taw qhia) thiab ntaus lub hauv paus chiv keeb ntawm lub phosphor npo.
Fluorescent screen oscilloscope
Lub vijtsam phosphor yog nyob rau ntawm qhov kawg ntawm lub oscillograph raj, thiab nws txoj haujlwm yog los tso saib cov kab hluav taws xob deflected rau kev soj ntsuam. Sab hauv phab ntsa ntawm lub vijtsam phosphor yog coated nrog ib txheej ntawm cov khoom siv luminescent, kom lub fluorescent screen los ntawm high-speed electron cuam tshuam rau qhov chaw ntawm fluorescence.
Qhov ci ntsa iab ntawm qhov chaw yog txiav txim siab los ntawm tus lej, qhov ceev thiab ceev ntawm lub teeb hluav taws xob. Thaum qhov hluav taws xob ntawm cov hluav taws xob tswj hluav taws xob hloov pauv, tus naj npawb ntawm cov hluav taws xob hauv cov hluav taws xob hluav taws xob yuav hloov thiab lub teeb pom kev ci ntsa iab yuav hloov.
Thaum siv lub oscilloscope, nws tsis pom zoo kom muab qhov chaw ci ntsa iab ntawm qhov screen ntawm oscilloscope. Txwv tsis pub, cov tshuaj fluorescent yuav hlawv tawm vim muaj kev cuam tshuam hluav taws xob mus sij hawm ntev thiab poob nws lub peev xwm los tawm lub teeb.
Cov saum toj no yog cov lus qhia luv luv rau peb lub ntsiab lus ntawm cov oscilloscope dav dav, peb yuav tsum ua raws li peb ntu kom nkag siab, ua ke nrog kev ua haujlwm tiag tiag peb tuaj yeem paub meej tias peb ntu no ua haujlwm li cas ntawm lawv daim teb.
OWON tau loj hlob nws txoj kev lag luam los ntawm cov khoom siv. Yog li thaum los mus kuaj thiab ntsuas cov cuab yeej, peb muaj qhov zoo dua ntawm kev tsim khoom thiab tsim. OWON covSDS series oscilloscopetuaj ntxov los ntawm 10 xyoo dhau los nrog loj 8 nti npo. TshiabXDS seriestxawm txhawb kev ua haujlwm ntau kov, uas yuav txhim kho kev ua haujlwm zoo.
